'Smash' finale preview: Who will go on stage as Marilyn? -- EXCLUSIVE VIDEO

In the theater, there are things you say… and things you don’t say. It’s “break a leg” not “good luck” and it’s NEVER “MacBeth.” So in the season finale of Smash, which airs next Monday, May 14, the cast and crew are whispering “break a leg” to each other as Marilyn takes the stage for the first time. Who is Marilyn – Ivy or Karen… or Uma, I mean Rebecca? Your guess is still as good as mine, but the clip below means at the very least the show will… go on.